Tag: meaning of life

Questions Related to meaning of life

Agroecosystem is unstable because of

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Lack of variety

  2. Lack of biological control

  3. Both A and B

  4. Being man made

Show answer
Correct Option: C
Explanation:

Agroecosystem is also called as ecosystem on agricultural land. It is created by man. It includes biotic and nonbiotic components involved in that unit and their interactions.  It is unstable because of lack of variety and lack of biological control. It also lacks self-control.

Thus, the correct answer is 'Both A and B.'

Genotypically adapted local population is called

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Ecotype

  2. Ecad

  3. Biotype

  4. Ecocline

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Correct Option: A

Plant species having a wide range of genetic distribution evolve into local population are known as

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Ecotype

  2. Population

  3. Ecosystem

  4. Biome

Show answer
Correct Option: A
Explanation:

An ecotype is known as the population of a species that survives as a distinct group through environmental selection and isolation and that is comparable with certain species.

So, the correct option is 'Ecotype'.

Great Barrier Reef along east coast of Australia is a

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Population

  2. Community

  3. Biome

  4. Ecosystem

Show answer
Correct Option: D
Explanation:
Great Barrier Reef along east coast of Australia is categorized as an ecosystem. An ecosystem is made up biotic and abiotic components. Biotic components include plants, animals, microorganisms. Abiotic components include air, water, temperature, soil. Population is the number of organisms of same species in an area. Community is the group of populations of different species in an area. Biome is a community of plants and animals having common characteristics sharing a common place.
Thus, the correct answer is 'Ecosystem.'

Ari ecosystem is not a

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Open system

  2. Closed system

  3. Variable system

  4. None of the above

Show answer
Correct Option: B
Explanation:

An open system is defined as a system wherein there is free exchange of both matter and energy with the surroundings. The system has interaction with the external environment. A close system is defined as a system where there is no exchange of either matter or energy with the surroundings. All the ecosystems on Earth are called as open systems. Earth is an open system for energy. 

Thus, the correct answer is 'Closed system.'

Edge effect is observed in case of 

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Ecotone

  2. Ecozone

  3. Biotype

  4. Ecosphere

Show answer
Correct Option: A
Explanation:
The edge effect is caused by a distinct edge or boundary between two ecosystems such as between forrest and grasslands or land and water. These areas where the edge effect is observed are called ecotones. Ecotones are where increased biodiversity is observed.

So, the correct answer is 'A'.

Major communities of the world are

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Scrubs, jungles and gardens

  2. Ocean, fresh water and forest communities

  3. Grassland and desert communities

  4. Both B and C

Show answer
Correct Option: D
Explanation:

The living world is made up of different communities living in it. Some of these communities are the communities living in oceans, fresh water and forest communities, communities living in grasslands and deserts. These communities have different individuals belonging to them and have certain different characteristics. So, option D is the correct answer.

Swamps differ from marshes in having

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Grasses

  2. Floating leaved plants

  3. Trees and shrubs

  4. Both A and B

Show answer
Correct Option: C
Explanation:
Swamps and marshes differ only in the manner of their vegetation pattern.
So, the correct answer is 'trees and shrubs'

Total land area of the world is

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. 1393 million hectares

  2. 13393 million hectares

  3. 103393 million hectares

  4. 393 million hectares

Show answer
Correct Option: B
Explanation:
About one-fourth of earth's surface is land which corresponds to 13,393 million hectares. Most of the land is occupied by human habitations and industrial area and about 26% of land is covered by vegetation.
So, the correct answer is '13393 million hectares'.

An incomplete ecosystem is

zoology meaning of life level of biological organization in animals introduction to tissues basics of ecology

  1. Grassland

  2. River

  3. Wetland

  4. Cave

Show answer
Correct Option: D
Explanation:

An incomplete ecosystem is cave. Its habitat is not suitable for primary productivity. It lacks sunlight and primary plant productivity. The animals and plants are present only at the entrance of cave as limited sunlight reaches at the entrance.

Thus, the correct answer is 'Cave.'